Gabriel jasmaoy



(No Model.)

' G. JASMAGY. Rotary Engine.

Patented Dec. 7,1880.

W ITK ESSES ATTORNEYS.

UNITED STATES PATENT OFFICE.

GABRIEL JASMAGY, OF BROOKLYN, E. D., NEW YORK, ASSIGNOR TO HIMSELF ANDPETER SGHEER, OF SAME PLACE.

ROTARY ENGINE.

SPECIFICATION forming part of Letters Patent No. 235,246, dated December'7, 1880.

Application filed September 24, 1880. (No model.)

To all whom it may concern:

Be it known that I, GABRIEL JASMAGY, of Brooklyn, E. D., in the countyof Kings and State of New York, have invented a new and Improved RotaryEngine, of which the following is a specification.

The object of my invention is to provide a new and improved rotaryengine which is simple in construction and effective in use.

The invention consists in a rotary engine formed of a cylindercontaining .an interior longitudinally-slotted cylinder of one-half itsdiameter mounted on a suitable shaft journaled in the end pieces of theouter cylinder, which slotted cylinder is provided with two overlappingsliding piston-plates which are provided at the ends with a pin and apivoted curved guide-bar fitting in an annular groove on the innersurface of one or both end pieces of the outer cylinder, whereby thesliding piston-plates are. drawn out and inward alternately, and form apiston of variable size as the shaft rotates.

In the accompanying drawings, Figure l is a longitudinal sectionalelevation of my improved rotary engine, showing the sliding pistonextended to greatest extent. Fig. 2 is a cross-sectional elevation ofthe same on the line 00 ac, Fig. 1. Fig. 3 is an end elevation of theinner slotted cylinder and its sliding piston-plates. Fig. 4 is aninside elevation of one of the end plates of the main outer cylinder.

Similar letters of reference indicate corresponding parts.

The cylinder A is turned absolutely true and smooth on the inner side,is provided with suitable supports B B, and is provided with twoapertures, O and D, for the entrance and exit of the steam, compressedair, water, or other motive element. A second solid cylinder, E, of thesame length as the interior of the cylinder A, and having a diameterwhich is at least equal to the radius of the cylinder A, so that it willbe in contact with the inner surface of the cylinder A, is mountedcentrally on a shaft, F, journaled in the end piece, G G, and on thesupports H H, and provided with a pulley, J. The ends of the innercylinder, E, fit into apertures K K on the inner sides of the endpieces, G G. The inner cylinder, E, is provided with a longitudinalslot, L, in which two sliding piston-plates, M and 0, fit, each havingthe same length as the slot, but only one-half of its thickness, so thatthey completely fill the slot, but permit the plates to slide upon eachother and in the slot. Each plate M and O is provided with an endflange, N and P, respectively, rounded at the outer edge, and smoothedand polished, so as fit closely against the inner side of the cylinderA. A pin or stud, Q, projects from one end of the flange P of the plate0, parallel to the same, into an annular groove, R, in theinner side ofthe end piece, G, along the edge of the cylinder A.

A bar, S, the outer surface of which is curved precisely the same as theinner surface of the cylinder A, is centrally pivoted to the end of theflange N of the plate M, and also fits in the groove R.

The inner cylinder, E, is provided with a transverse groove, T, toreceive the pivoted barS when the plate M has passed into the slot L sofar that the outer edge of its flange N is flush with outer surface ofthe cylinder E.

An L shaped piece of metal, U, is loosely mounted on a radial wire, V,in the end of the cylinder E, so that it can slide to and from thecenter of the cylinder on this wire, and is provided with a stud, W,projecting through a radial slot, X, in the end of the cylinder into aneccentric groove, Y, in the recess K of the end piece, G, forming aneccentric ridge, Z.

The plates M and 0 may be provided with the guiding devices thusdescribed at one or both ends, as may be desired, the end pieces beingconstructed accordingly.

The operation is as follows: If the plates M and 0 are in the positionshown in Fig 2, and steam is admitted through the port or aperture D,the same will press upon the plates and move the same downward; but asthe front end of the plate Mis attached to the bar S, which is guidedand held in the slot R, the end of the plate M must move with the barS-that is, the plate M is gradually drawn out of the slot L until it isin the position shown in Fig. 1, which is the maximum extension of theplate M; but the steam or other motive power continually presses against the plate M in the direction of the arrow (1, and it necessarilyfollows that from the point I) on the plate M it is gradually pushedback int0 the slot L again but if the plate M moves as shown, the plate0 will have to move. in a similar manner, which shall now be explained.The pin Q of the plate 0 is also guided by the groove R, and as theplate M is drawn out of the slot L the plate 0 is pushed into it, andwhen the plate M is in the position shown in Fig. 1 the upper edge ofthe flange l of the plate 0 will be flush with the surface of thecylinder E but now it the plate M moves beyond the point D and begins tomove into the slot L, the plate() will begraduallydrawn out ofthe slot,and when it reaches the port I) the live steam, &c., will actupon it,andtinally the outer edge of the plate. 0 will have reached the point b,that is its maximum of extension, and the outer edge of the flangeNot'the plate M will be flush with the surface of the cylinder E, andthe thickness of the bar S will pass into the grooveT; for as thecylinder 1) rotates first one end, 11, then the center, and finally theother end of this bar 5 will he depressed into the groove T. As theouterrounded edge of the barSalways fits snugly to the outer edge of thegroove It, the ends at and n of this bar will always be guided over thenoses p and sin such a manner that they cannot lock or catch: but thepin Qof the plate 0 must also be raised, sous not to catch on thenoses 1) am] 8. This is accomplished in thet'ollowing manner: When theouter edge of the plate 0 is flush with the surface of the cylinder Ithe pin \V rests upon the narrowest part y of the ridge Z; but as thecylinder 1'] rotates the ridge gets wider and the pin W is graduallymoved toward the periphery, and the block or L-shaped piece 1' moveswith it; but the pin Q rests upon this piece U and is raisedsufficiently by the same to clear the noses. At the end of thisrevolution the pin \V comes to the narrow part of the ridgeZagain,thcpiece U is drawn toward the center, and the plate 0 can pass entirelywithin the slot L. In the manner described the steam acts alternatclyonthereon fitting in grooves in the and pieces of the cylinder, as setforth.

2. In a rotaryengine, the combination, with the main cylinder A, of aninterior longitudinally-slotted cylinder, E, the overlapping slidingpiston-plates M and 0 sliding therein, and the aminlarly-grooved endpieces, G G, substantially as herein shown and described, and for thepurpose set forth.

3. In a rotary engine, the combination, with the inner slotted cylinder,E, of the sliding plate 0, provided with a stud, Q, of the L- shapedsliding block U and the eccentric guiding-ridge Z, substantially asherein shown and described, and for the purpose of guiding the pin orstud Q over the noses p and s, as set forth.

4. In a rotary engine the combination, with the inner slotted cylinder,E, of the overlapping sliding piston-plates M and O, the pin Q of theplate 0, and the pivoted curved bar S of the plate M, and theannularly-grooved end pieces, G aml G, substantially as herein shown anddescribed, and for the purpose set forth.

5. In a rotary engine, the inner cylinder, E, constructed,substantiallyas herein shown and described, with a longitudinal slot, L,to receive the sliding plates M and O, and with a transverse groove, T,in one end, for the purpose of receiving the curved guide-bar S. as setforth.

6. In a rotary engine, a rotary sliding piston-plate constructed,substantially as herein shown and described, withacnrved guide-bar, S,pivoted thereto, for the purpose of guiding the outer end of saidpiston-plate, as set forth.

GABRIEL JASMAGY.

\Vitnesses:

OSCAR F. GUNZ, C. SEDGWICK.

